Colleagues,
In the current specification of ALTO, are costs always End to End?
What I mean by that is when looking at ALTO cost maps is it possible to safely
assume that of there is a cost between PIDX & PID Y and a cost between PIDY &
PIDZ then the cost between PIDX & PIDZ can be calculated as
cost(PIDX,PIDY)+cost(PIDY,PIDZ)? [If this assumption does hold, it is obviously
not applicable to ordinal cost types].
I suspect the answer is no, but I wanted to check what the definitive answer is.
For example if a cost map contains:
"map" : {
"PID1": { "PID2": 1 },
"PID2": { "PID1": 1, "PID3": 2 },
"PID3": { "PID2": 2 }
Can one assume that the cost between PID1 & PID3 is 3 (PID1->PID2 + PID2->PID3)?
How about if the cost map contains:
"map" : {
"PID1": { "PID2": 1, "PID3": 3 },
"PID2": { "PID1": 1, "PID3": 2 },
"PID3": { "PID2": 2, "PID1": 3 }
Can one assume PID2 is on a path between PID1 & PID3?
Thanks
Ben
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